Xem thêm

Mattress Sizes and Bed Dimensions: Finding the Perfect Fit

CEO Khai Intela
Are you struggling to find the right bed size for your bedroom? Do you want to ensure maximum comfort without sacrificing space? Look no further! In this comprehensive guide, we will walk you through the...

Are you struggling to find the right bed size for your bedroom? Do you want to ensure maximum comfort without sacrificing space? Look no further! In this comprehensive guide, we will walk you through the various mattress sizes and bed dimensions available in the market. From twin to California king, we've got you covered!

latex mattress Alt: latex mattress

Mattress Sizes and Dimensions Chart

Deciding between a full, queen, or king-size mattress can be overwhelming. To simplify the process, we've created a handy mattress sizes and dimensions chart to help you make an informed choice. Here's a snapshot:

Mattress Size Dimension (inches) Dimension (cm) Dimension (feet)
Crib 27.25 x 51 69.22 x 129.54 2.27 x 4.25
Twin 38 x 75 96.5 x 188.0 3.16 x 6.25
Twin XL 38 x 80 96.5 x 203.5 3.16 x 6.66
Full 54 x 75 134.5 x 190.5 4.5 x 6.25
Full XL 54 x 80 137.16 x 203.2 4.5 x 6.66
Queen 60 x 80 152 x 203.5 5 x 6.66
California Queen 60 x 84 152.4 x 213.36 5 x 7
Olympic Queen 66 x 80 167.64 x 203.2 5.5 x 6.66
King 76 x 80 193 x 203.5 6.33 x 6.66
California King 72 x 84 183 x 213.5 6 x 7
Texas King 80 x 98 203.2 x 248.92 6 x 8.16

Note: The dimensions mentioned in this guide focus on mattress sizes and dimensions in Canada and the US.

Standard Mattress Sizes

The first step in your mattress research journey is understanding the types of mattresses commonly found in American bedding stores. Standard mattress sizes make it easier to find suitable sheets and bedding while facilitating mattress transportation. Here are the most popular ones:

Twin Mattress Size

  • Twin bed size dimensions: 38 x 75 inches
  • Minimum recommended room size: 7 x 10 feet
  • Bed frame size: 40 - 43 x 77 - 80 inches

The twin mattress, also known as a single mattress, is the smallest standard size in America. It is an ideal choice for children or individuals with limited space. Parents often choose twin mattresses for bunk beds or single beds for their children. Additionally, adults under 6 feet tall can comfortably sleep on twin mattresses.

Twin bed Alt: Twin bed

Twin XL Mattress Size

  • Twin XL size bed dimensions: 38 x 80 inches
  • Minimum recommended room size: 9.6 x 10.6 feet
  • Bed frame size: 40 - 43 x 80 - 85 inches

Twin XL mattresses are 5 inches longer than twin mattresses, making them a popular choice for taller individuals and college dorms. Teens experiencing growth spurts often outgrow their previous mattresses, and the twin XL offers additional legroom. Colleges typically furnish their dorm beds with twin XL mattresses as well.

Twin XL bed Alt: Twin XL bed

Full Mattress Size

  • Full size bed dimensions: 54 x 75 inches
  • Minimum recommended room size: 9.6 x 10.6 feet
  • Bed frame size: 56 - 59 x 77 - 80 inches

The full size mattress, also known as a double mattress, used to be the standard sleeping option for couples in the 1940s. However, it lost popularity among couples due to its limited space (27 inches per sleeper). Nonetheless, the full size mattress remained a preferred choice for singles, college students, and those who desire a balance between space and comfort.

Full bed Alt: Full bed

Queen Mattress Size

  • Queen size bed dimensions: 60 x 80 inches
  • Minimum recommended room size: 10 x 10 feet
  • Bed frame size: 62 - 65 x 82 - 85 inches

The queen mattress is the most popular mattress size in America. It provides an ideal balance of space and comfort for couples, allowing them to sleep comfortably without feeling cramped. The queen mattress is also a popular choice for small bedrooms or guest rooms, as it offers a balance of space and comfort without overwhelming the room.

Queen bed Alt: Queen bed

King Mattress Size

  • King size bed dimensions: 76 x 80 inches
  • Minimum recommended room size: 12 x 12 feet
  • Bed frame size: 78 - 81 x 82 - 85 inches

The king mattress is a great choice for couples who desire ample space to sprawl out or individuals who simply want more room to themselves. It provides significant width compared to a queen mattress, allowing for a more comfortable sleep. King mattresses are also popular among taller individuals who require extra length.

King bed Alt: King bed

California King Mattress Size

  • California king size bed dimensions: 72 x 84 inches
  • Minimum recommended room size: 12 x 12 feet
  • Bed frame size: 74 - 77 x 86 - 89 inches

The California king mattress is a variation of the king size mattress, offering additional length for taller individuals. It is 4 inches narrower but 4 inches longer than a standard king mattress, providing more legroom. A California king is an excellent choice for those who desire extra space without compromising comfort.

California King bed Alt: California King bed

Other Mattress Sizes

In addition to the above standard sizes, there are several other mattress options available to suit specific needs. Let's explore a few:

Crib Mattress Size

  • Crib mattress dimensions: 27.25 x 51 inches

A crib mattress is designed to fit inside a crib and follows regulated dimensions to ensure safety. It is typically used for infants and can be slightly longer for toddler beds. When choosing a crib mattress, consider the required thickness and firmness to support your child's developing bones.

Crib size mattress Alt: Crib size mattress

Full-XL Mattress Size

  • Full-XL mattress dimensions: 54 x 80 inches

The full-XL mattress is a larger version of the double mattress, making it suitable for taller individuals who require more legroom. It is not a standard size and may be harder to find in local stores, but it can be ordered through online vendors or specialty mattress stores.

Super-King Mattress Size

  • Super-king mattress dimensions: 72 x 84 inches

The super-king mattress is one of the largest mattress sizes available, offering luxurious and spacious sleeping arrangements. It is perfect for those who desire ample room to sprawl out and enjoy sleeping space with their family or pets. Due to its size, a super-king mattress requires a spacious master bedroom.

Super king mattress Alt: Super king mattress

Texas Mattress Size

  • Texas king bed dimensions: 80 x 98 inches

The Texas king bed, named after the sizeable state, provides impressive dimensions, making it suitable for families or those who desire ample space. Although less common and harder to find than standard sizes, Texas king mattresses offer comfortable sleeping arrangements for multiple individuals.

Alaskan King Mattress Size

  • Alaskan king bed dimensions: 108 x 108 inches

The Alaskan king mattress is one of the largest mattresses available, offering nine feet of width and length. It is ideal for accommodating multiple people, making it suitable for families or those who desire plenty of room to stretch out. However, due to its size, finding an Alaskan king mattress may require a custom order.

Alaskan king mattress Alt: Alaskan king mattress

Olympic Queen Mattress Size

  • Olympic queen bed dimensions: 66 x 80 inches

The Olympic queen mattress is wider than a standard queen mattress, offering additional space for couples who desire more room to sleep comfortably. It provides a great balance between a queen and king mattress, allowing for comfortable sleep without overwhelming the room.

Olympic queen mattress Alt: Olympic queen mattress

RV Mattress Size

  • RV mattress dimensions: Varies (typically queen or king size)

RV mattresses are designed to fit inside recreational vehicles and come in various sizes. Most RVs are equipped with queen-sized beds, with some featuring king-sized beds or even California king-sized beds. RV mattresses have unique thicknesses, typically ranging from four to eight inches.

RV mattress size and dimension Alt: RV mattress size and dimension

How to Choose the Right Mattress Size

Choosing the right mattress size requires careful consideration of several factors. Here are a few key points to keep in mind:

Bedroom Size

Consider the size of your bedroom when selecting a mattress. Ensure that the mattress fits comfortably, allowing for movable space and furniture placement. Measure your room's dimensions and consult our mattress size and room size table for guidance. It's important to have a visually stress-free bedroom that promotes relaxation and comfort.

Mattress size selection based on room size Alt: Mattress size selection based on room size

Sleeping Partner

If you share your bed with a partner, consider their sleeping habits and preferences. Determine whether a single or double sleeper mattress is suitable for your needs. Investing in a larger mattress from the outset can save you money in the long run and provide ample sleeping space for future needs.

Bedroom Position

Consider the logistics of transporting and installing a large mattress based on your bedroom's position. Heavier mattresses can be challenging to move, and damage during transit can compromise their effectiveness. Plan for professional delivery and installation, especially if you live in a high-rise building or have limited access.

Your Height

Your height is an important factor when choosing a mattress size. If you are shorter or taller than average, consider how the mattress dimensions will accommodate your height. A queen or king-size mattress is ideal for taller individuals, while a twin or full size is suitable for shorter individuals.

Mattress Type

Consider any medical conditions or allergies that may affect your choice of mattress type. Consult with professionals, such as doctors or chiropractors, to determine the best mattress for your specific needs. Additionally, ensure that the mattress materials are suitable for your allergies and preferences.

Consider the type of mattress when choosing the mattress size Alt: Consider the type of mattress when choosing the mattress size


Set a budget for your mattress purchase and consider the long-term value. While it's tempting to opt for the most affordable option, remember that a mattress is an investment in your health and well-being. Choose a high-quality mattress that will provide comfort and support for the next decade.


We understand that choosing the right mattress size can be overwhelming. To address common questions, here are a few FAQs:

1. How is mattress size measured?

Mattress sizes are typically measured in inches, with thickness ranging from six to eight inches. The width and length of a mattress depend on the specific type, such as twin, queen, or king. It's important to measure your bedroom space accurately to accommodate the desired bed size.

How to measure a mattress Alt: How to measure a mattress

2. What are the different sizes of beds?

Common bed sizes include twin, twin XL, full, queen, king, and California king. Each size offers a unique combination of space and comfort to suit individual needs.

3. What's the best mattress size for couples?

The best mattress size for couples is typically a queen. It offers ample space for two people to sleep comfortably without feeling cramped. A queen mattress strikes a balance between space and affordability, making it a popular choice.

Best mattress size for couples Alt: Best mattress size for couples

4. What's the difference between a full and double bed?

The terms "full bed" and "double bed" are interchangeable, both referring to the same bed size, which measures 54 x 75 inches. The difference lies in regional terminology or personal preference rather than size or functionality.

5. What's the largest mattress size?

The largest mattress size is the Alaskan king. It measures a whopping 108 x 108 inches, providing plenty of space for a comfortable sleep experience. However, Alaskan king mattresses are custom order items due to their size.

6. Is a full-size mattress big enough for two people?

A full-size mattress provides 27 inches of space per person, which may feel cramped for some couples. While it can accommodate two people, it is best suited for single sleepers or individuals who don't mind snuggling up close to their partner.

7. What size do two side-by-side twin XL mattresses make?

Two side-by-side twin XL mattresses make a king-size bed. Combining two twin XL mattresses provides ample space for couples who desire additional room to sleep comfortably.

8. What's the standard size of a bunk bed mattress?

Most bunk bed mattresses are twin-sized, measuring 39 inches wide and 75 inches long. However, it's essential to double-check the bed frame dimensions before buying a bunk bed mattress, as some bunk beds require smaller mattresses.

9. What size bed do most couples sleep on?

Most couples sleep on a queen-size bed, measuring 60 x 80 inches. It offers a balance of space and comfort, allowing couples to sleep comfortably without feeling cramped. Queen mattresses are also suitable for small bedrooms or guest rooms.

10. Do two twin beds make a queen-size mattress?

No, two twin beds do not make a queen-size mattress. Twin beds are significantly smaller than a queen, measuring 38 inches wide compared to 60 inches for a queen. However, two twin beds can make a larger bed than a full-size mattress.

11. Is a double mattress the same as a queen-size mattress?

No, a double mattress is not the same as a queen-size mattress. A double mattress, also known as a full-size mattress, measures 54 x 75 inches, while a queen mattress measures 60 x 80 inches. Queen mattresses offer more space and comfort compared to double mattresses.

12. How can you tell the difference between a double vs king-size mattress?

Visually, a king-size mattress is significantly larger than a double (full) mattress. A king mattress measures 76 x 80 inches, while a double mattress measures 54 x 75 inches. The king-size provides more width and length, offering ample sleeping space for couples.

13. What is the best size of mattress for two people?

The best mattress size for two people depends on personal preferences and space availability. A queen-size mattress offers a comfortable sleep experience for couples, striking a balance between space and affordability. Couples desiring additional room or having children or pets may opt for a king or California king mattress.

14. What is the best size of mattress for families?

For small families, king and California king mattresses are ideal choices, providing ample space for multiple individuals to sleep comfortably. Texas king, Alaskan king, and Family XL oversized mattresses can accommodate larger families.

A perfect family bed Alt: A perfect family bed

15. What is the best mattress for singles?

A twin or twin XL mattress is ideal for single individuals on a budget or with limited space. However, if budget is not a concern and luxury sleep is a priority, a queen-size mattress is a comfortable choice. It offers ample room for single adults to sleep comfortably.

We hope this comprehensive guide has provided clarity on mattress sizes and dimensions. Remember to consider your room size, sleeping partner, bedroom position, height, mattress type, and budget when making your decision. Investing in the right mattress will ensure a comfortable and restful night's sleep for years to come.

Disclaimer: The content provided in this article is for educational and informational purposes only. It is not a substitute for professional advice from a qualified doctor or healthcare provider. Always consult a healthcare professional with any concerns or questions regarding your health or medical condition.